Windows Aero – the glass-effect transparent window borders from Windows Vista and 7 – doesn’t exist in Windows 10 in its original form. Microsoft replaced it with a flatter design language. But there are ways to get a similar look, and Windows 10 does have its own transparency and accent color system worth knowing about.
What happened to Aero
Aero (Authentic, Energetic, Reflective, Open) was the Windows Vista/7 visual style featuring frosted glass window chrome, depth effects, and reflective surfaces. It was removed in Windows 8 as part of the shift to Metro/flat design and never returned natively.
Windows 10 has its own transparency effects (taskbar and Start menu can be translucent) but not the full glass window border look of classic Aero.
Enabling Windows 10’s built-in transparency
Settings > Personalization > Colors > scroll down to “Transparency effects” > toggle on. This makes the taskbar, Start menu, and Action Center semi-transparent. It’s not the same as Aero glass but it’s the native transparency option.
You can also customize the accent color and choose to show it on title bars and window borders: same Colors settings page > “Show accent color on the following surfaces” > check “Title bars and window borders.”
Getting the Aero glass look via third-party tools
Mica For Everyone and MicaForEveryone – open source tools that extend Windows 11’s Mica material effect to more UI elements and can create some glass-like transparency.
Glass2k – an older tool that forces window transparency on any application. Works on Windows 10 but development has been inactive for years.
WindowBlinds (paid) – a commercial skinning tool that can closely replicate the Aero glass aesthetic on Windows 10/11 with high visual fidelity.
Classic Shell / Open-Shell – primarily a Start menu replacement but some themes include Aero-style elements.
The honest caveat
None of these exactly recreate Windows 7 Aero because that effect was built into the DWM compositor at a low level. Third-party tools approximate it to varying degrees. If the aesthetic is important to you, WindowBlinds produces the closest result but it’s a paid application.
For most users, enabling Windows 10’s native transparency and customizing the accent color gets reasonably close to the feel if not the exact visual.